JP5799862B2 - Magnetic air conditioner - Google Patents

Description

  The present invention relates to a magnetic air conditioner, and more particularly to a magnetic air conditioner that can efficiently generate cold air and hot air according to required cooling capacity and heating capacity.

  Most of refrigerators such as refrigerators, freezers, and air conditioners that are conventionally used at room temperature range use the phase change of a gaseous refrigerant such as chlorofluorocarbon gas or alternative chlorofluorocarbon gas. Recently, the problem of ozone depletion due to the emission of chlorofluorocarbons has been exposed, and there is also concern about the impact on global warming caused by the emission of alternative chlorofluorocarbons. For this reason, there is a strong demand for the development of an innovative refrigerator that is clean and has a high heat transport capability, replacing the refrigerator that uses a gaseous refrigerant such as CFC and CFC.

  Against this background, the refrigeration technology that has recently attracted attention is the magnetic refrigeration technology. Some magnetic materials exhibit a so-called magnetocaloric effect that changes their temperature according to the change of the magnitude of the magnetic field applied to the magnetic material. A refrigeration technique that transports heat using a magnetic material that exhibits this magnetocaloric effect is a magnetic refrigeration technique.

  As a refrigerator using the magnetic refrigeration technology, for example, there is a magnetic refrigerator that transports heat by utilizing the heat conduction of a solid substance as described in Patent Document 1 below. This magnetic refrigerator conducts heat by the following configuration.

  A plurality of positive magnetic bodies that increase in temperature when magnetism is applied and negative magnetic bodies that decrease in temperature when magnetism is applied are alternately arranged in one direction at predetermined intervals. One magnetic body block is formed by a pair of positive and negative magnetic bodies. A plurality of magnetic blocks arranged in one direction are arranged in a ring shape to form a magnetic unit. Permanent magnets are arranged on a hub-like rotating body that is concentric with the magnetic body unit and has substantially the same inner diameter and outer diameter to form a magnetic unit. A heat conducting member for inserting and removing between the positive and negative magnetic bodies is disposed so as to be slidable between the positive and negative magnetic bodies.

  The magnetic unit in which the permanent magnet is disposed is disposed so as to face the magnetic body unit, and is rotated relative to the magnetic body unit. The heat conducting member inserted / removed between the positive / negative magnetic bodies is rotated relative to the magnetic body unit. Magnetism is simultaneously applied to and removed from the positive and negative magnetic bodies by the rotation of the magnetic unit. Further, the heat conducting member is inserted into and removed from the positive and negative magnetic bodies arranged in the rotation direction. By rotating the permanent magnet and the heat conducting member, the heat generated by the magnetic body due to the magnetocaloric effect is transported through the heat conducting member in one direction in which the magnetic body is disposed.

JP 2007-147209 A

  However, the magnetic refrigerator described in Patent Document 1 discloses a configuration for transporting heat in one direction using heat conduction of a solid substance, but is a specific for taking out the transported heat to the outside. No arrangement is disclosed. The magnetic refrigerator needs a configuration for efficiently taking out the transported heat to the outside. If the transported heat cannot be efficiently taken out, heat is generated in the magnetic refrigerator, and the thermal efficiency as the magnetic refrigerator is significantly reduced.

  In order to extract heat to the outside, a conceivable configuration is that a refrigerant path for hot air and cold air is provided in the inner and outer peripheries of the magnetic refrigerator, and air is circulated through the refrigerant path so that hot air and cold air are circulated. It is the composition of obtaining. In this case, simply providing a refrigerant passage cannot efficiently generate cold air and hot air according to the required cooling capacity and heating capacity.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a magnetic air conditioner that can efficiently generate cold air and hot air according to required cooling capacity and heating capacity.

  In order to achieve the above object, a magnetic air conditioner according to the present invention includes a hollow heat generating disk having a magnetocaloric material and a heat switch, and a hollow heat generating disk having a magnetic field applying unit that applies a magnetic field to the magnetocaloric material. A magnetic air conditioner that transports heat in a direction crossing the rotational direction by rotating a plurality of magnetic field application disks alternately and relatively rotating at least one of the heat generation disk and the magnetic field application disk.

  The magnetic air conditioner has a drive unit and a transmission unit. The drive means rotates at least one of the heat generation disk and the magnetic field application disk. The transmission unit transmits the driving force from the driving unit to the plurality of heat generating disks or the plurality of magnetic application disks integrally or in a group. Therefore, when the required cooling capacity and heating capacity are relatively small, the driving force is transmitted to some of the heat generation disks or the magnetic field application disks by the transmission means. On the other hand, when the required cooling capacity and heating capacity are relatively large, the driving force is transmitted to all the heat generating disks or the magnetic field application disks by the transmission means.

  According to the magnetic air conditioner according to the present invention having the above-described configuration, the driving force can be transmitted to a plurality of heat generating disks or a plurality of magnetic application disks integrally or separated into a plurality of groups. The cool air and the hot air can be efficiently generated according to the required cooling capacity and heating capacity.

It is an external view of the magnetic air conditioning apparatus which concerns on this embodiment. It is AA sectional drawing of FIG. It is a block diagram of a magnetic field application disk. It is a block diagram of a heat generation disk. The detail of the communicating valve of the magnetic air conditioning apparatus which concerns on this embodiment is shown. It is a block diagram for demonstrating the outline of the control based on the signal from the supply destination of the air conditioning wind of the magnetic air conditioning apparatus which concerns on this embodiment, and the supply destination of an air conditioning wind. It is a block diagram of the control system of the magnetic air conditioning apparatus which concerns on this embodiment. It is an operation | movement flowchart of a controller. It is an operation | movement flowchart of the mode 1 in a controller. It is an operation | movement flowchart of the mode 2 in a controller. It is an operation | movement flowchart of the mode 3 in a controller. It is an operation | movement flowchart of the air-conditioning control in a controller. It is operation | movement explanatory drawing of the three-way valve in each operation mode. It is a figure which shows the condition of the air flow in each operation mode.

  Below, the magnetic air conditioning apparatus which concerns on this embodiment is demonstrated.

  FIG. 1 is an external view of a magnetic air conditioner according to this embodiment. As shown in the figure, the magnetic cooling / heating device 100 has a cylindrical outer shape.

  The magnetic air conditioner 100 is formed of two cores, an upper core 100A and a lower core 100B. Each of the upper core 100A and the lower core 100B has a cylindrical shape having the same diameter.

  A concentric cylindrical outer refrigerant passage 200A extending from the bottom surface to the upper surface is formed in the outer peripheral portion of the upper core 100A over the entire circumference of the upper core 100A. Note that the upper surface and the bottom surface of the outer peripheral refrigerant passage 200A are closed. An inlet 200AIN for allowing air as a refrigerant to flow into the outer peripheral refrigerant passage 200A is attached to the upper surface side of the upper core 100A. An outlet 200AOUT is formed on the bottom surface side of the upper core 100A to allow air flowing in from the inlet 200AIN to flow out. Therefore, in the outer peripheral refrigerant passage 200A, the air that flows in from the inlet 210AIN flows out from the outlet 200AOUT.

  In the present embodiment, the air that flows in from the inlet 200AIN and flows through the outer refrigerant passage 200A is cooled to reach the outlet 200AOUT. In the present embodiment, air is exemplified as the refrigerant, but a gas refrigerant other than air may be used as long as it has excellent heat transfer characteristics.

  An outer rotor motor 300M is attached as a driving means to the center of the upper surface of the upper core 100A. A cylindrical rotor 310A is attached to the outer periphery of the outer rotor motor 300M. A clutch 300Ca is attached to the lower portion of the rotor 310A as a transmission means.

  A concentric cylindrical inner peripheral refrigerant passage 320A extending from the bottom surface of the upper core 100A to the upper surface along the outer periphery of the rotor 310A is formed in a region between the outer periphery of the rotor 310A and a part away from the outer periphery. The upper surface and the bottom surface of the inner peripheral refrigerant passage 320A are closed in the same manner as the outer peripheral refrigerant passage 200A. An inlet 320AIN that allows air to flow into the inner peripheral refrigerant passage 320A is attached to the upper surface side of the upper core 100A. An outlet 320AOUT is formed on the bottom side of the upper core 100A to allow the air flowing in from the inlet 320AIN to flow out. Therefore, in the inner peripheral refrigerant passage 320A, the air that flows in from the inlet 320AIN flows out from the outlet 320AOUT.

  In the present embodiment, the air flowing in from the inlet 320AIN and flowing through the inner peripheral refrigerant passage 320A is heated up to the outlet 320AOUT.

  In the above, the case where the air flowing in from the inlet 200AIN of the outer refrigerant passage 200A is cooled in the outer refrigerant passage 200A is illustrated. However, the air flowing in from the inlet 200AIN of the outer refrigerant passage 200A may be heated in the outer refrigerant passage 200A. Further, in the above, the case where the air flowing in from the inlet 330AIN of the inner peripheral refrigerant passage 320A is heated in the inner peripheral refrigerant passage 320A is illustrated. However, the air flowing in from the inlet 330AIN of the inner peripheral refrigerant passage 320A may be cooled in the inner peripheral refrigerant passage 320A.

  A concentric cylindrical outer refrigerant passage 200B extending from the bottom surface to the upper surface is formed on the outer periphery of the lower core 100B over the entire circumference of the lower core 100B. Note that the upper surface and the bottom surface of the outer peripheral refrigerant passage 200B are closed. An inlet 200BIN for allowing air as a refrigerant to flow into the outer peripheral refrigerant passage 200B is attached to the upper surface side of the lower core 100B. An outlet 200BOUT is formed on the bottom side of the lower core 100B to allow the air flowing in from the inlet 200BIN to flow out. Accordingly, in the outer refrigerant passage 200B, the air that has flowed in from the inlet 210BIN flows out from the outlet 200BOUT.

  In the present embodiment, the air that flows in from the inlet 200BIN and flows through the outer refrigerant passage 200B is cooled to reach the outlet 200BOUT.

  A clutch 300Cb connected to the clutch 300Ca attached to the lower part of the rotor 310A of the upper core 100A is attached to the center of the upper surface of the lower core 100B. A cylindrical rotor 310B is attached to the clutch 300Cb.

  Similar to the upper core 100A, the region between the outer periphery of the rotor 310B and a part away from the outer periphery has a concentric cylindrical inner periphery extending from the bottom surface to the upper surface of the lower core 100B along the outer periphery of the rotor 310B. A refrigerant passage 320B is formed. The upper surface and the bottom surface of the inner peripheral refrigerant passage 320B are closed in the same manner as the outer peripheral refrigerant passage 200B. An inlet 320BIN that allows air to flow into the inner peripheral refrigerant passage 320B is attached to the upper surface side of the lower core 100B. An outlet 320BOUT is formed on the bottom surface side of the lower core 100B to allow the air flowing in from the inlet 320BIN to flow out. Therefore, in the inner peripheral refrigerant passage 320B, the air that flows in from the inflow port 320BIN flows out from the outflow port 320BOUT.

  In the present embodiment, the air that flows in from the inlet 320BIN and flows through the inner peripheral refrigerant passage 320B is heated by the time it reaches the outlet 320BOUT.

  In the above, the case where the air flowing in from the inlet 200BIN of the outer refrigerant passage 200B is cooled in the outer refrigerant passage 200B and flows out from the outlet 200BOUT is illustrated. However, the air flowing in from the inlet 200BIN of the outer refrigerant passage 200B may be heated in the outer refrigerant passage 200B. Further, in the above, the case where the air that has flowed in from the inlet 330BIN of the inner peripheral refrigerant passage 320B is heated in the inner peripheral refrigerant passage 320B is illustrated. However, the air flowing in from the inlet 330BIN of the inner peripheral refrigerant passage 320B may be cooled in the inner peripheral refrigerant passage 320B. In the present embodiment, cooled air or warmed air is used as air conditioning in the vehicle interior of the vehicle or for temperature adjustment of a battery, an inverter, and a motor mounted on the vehicle.

  Although not shown in FIG. 1, the inlet 200AIN, the inlet 320AIN, the outlet 200AOUT, the outlet 320AOUT and the inlet 200BIN, the inlet 320BIN, the outlet 200BOUT, and the outlet 320BOUT of the lower core 100B are not shown. Is connected to a communication valve for communicating each passage. In addition, air is supplied to the inlet 200AIN, the inlet 200BIN, the inlet 320AIN, and the inlet 320BIN from an externally provided pump. In this embodiment, a three-way valve is used as the communication valve. The connection between the communication valve and the pump will be described later.

  FIG. 2 is a cross-sectional view taken along the line AA of FIG. As shown in the figure, the magnetic cooling / heating device 100 is separated into an upper core 100A and a lower core 100B. Outer peripheral refrigerant passages 200A and 200B are formed in the outer peripheral portions of the upper core 100A and the lower core 100B.

  An outer rotor motor 300M is attached to the center of the upper surface of the upper core 100A. A cylindrical rotor 310A is attached to the outer periphery of the outer rotor motor 300M. A clutch 300Ca is attached to the lower portion of the rotor 310A. The rotor 310A is rotated in the direction indicated by the arrow by the outer rotor motor 300M.

  A clutch 300Cb connected to the clutch 300Ca attached to the lower portion of the rotor 310A of the upper core 100A is attached to the central portion of the upper surface of the lower core 100A. A cylindrical rotor 310B is attached to the clutch 300Cb. The clutches 300Ca and 300Cb are electromagnetic clutches 300C. When the clutch 300C is turned on, the clutches 300Ca and 300Cb are connected, the driving force of the outer rotor motor 300M is transmitted from the rotor 310A to the rotor 310B, and the rotor 310B rotates together with the rotor 310A.

  The rotor 310A is attached with hollow magnetic field application disks 400Aa, 400Ba, 400Ca, and 400Da that include a magnetic field application unit that applies a magnetic field to the magnetocaloric material. In addition, hollow magnetic field application disks 400Ab, 400Bb, 400Cb, and 400Db each having a magnetic field application unit that applies a magnetic field to the magnetocaloric material are attached to the rotor 310B. The magnetic field application unit is formed on both the front and back surfaces of the magnetic field application disks 400Aa-400Da and 400Ab-400Db.

  The outer peripheral surface of the rotor 310A and the magnetic field application disks 400Aa to 400Da and the outer peripheral surface of the rotor 300B and the inner peripheral surface of the magnetic field application disks 400Ab to 400Db are firmly fitted. Therefore, when the outer rotor motor 300M rotates while the clutch 300C is ON, both the rotors 310A and 310B rotate, and the magnetic field application disks 400Aa-400Da and the magnetic field application disks 400Ab-400Db rotate simultaneously. On the other hand, in the state where the clutch 300C is OFF, only the rotor 310A rotates and the magnetic field application disks 400Aa to 400Da rotate. Thus, by turning ON / OFF the clutch 300C, a plurality of magnetic application disks can be integrated or separated.

  Fixed to the rotor 310A are hollow heat generating disks 410Aa, 410Ba, 410Ca provided with a magnetocaloric material and a thermal switch so as to be sandwiched between the magnetic field application disks 400Aa, 400Ba, 400Ca, 400Da with a small gap therebetween. Attached. The rotor 310B includes hollow heat generating disks 410Ab, 410Bb, and 410Cb each including a magnetocaloric material and a thermal switch so as to be sandwiched between the magnetic field application disks 400Ab, 400Bb, 400Cb, and 400Db with a small gap therebetween. It is fixed and attached. Therefore, in the upper core 100A and the lower core 100B, the magnetic field application disk and the heat generation disk are alternately stacked with a minute interval.

  A magnetocaloric material has a characteristic that its temperature rises when a magnetic field is applied, and its temperature decreases when the magnetic field is removed (positive magnetic material: some of the opposite characteristics exist). In the present embodiment, only one of a positive magnetic material and a negative magnetic material is used as the magnetocaloric material. However, a positive magnetic material and a negative magnetic material may be mixed. The thermal switch is provided between the magnetocaloric material and the magnetocaloric material that are arranged, and selectively transfers and blocks heat between the magnetocaloric material. In the present embodiment, the temperature range in which the magnetocaloric effect of the magnetocaloric material is exerted is the heat generating disks 410Aa, 410Ba, 410Ca forming one group and the heat generating disks 410Ab, 410Bb, 410Cb forming the other group. Is different. This is because the upper core 100A and the lower core 100B have different temperatures of the air flowing in, and therefore, if a temperature range that exhibits the magnetocaloric effect is selected, cold air and hot air can be generated efficiently.

  Therefore, when the outer rotor motor 300M rotates while the clutch 300C is ON, both the rotors 310A and 310B rotate, and the magnetic field application disks 400Aa to 400Da and the magnetic field application disks 400Ab to 400Db rotate all at once. Then, the magnetic field is repeatedly applied to each of the heat generating disks 410Aa-410Ca and the heat generating disks 410Ab-410Cb, and the heat moves in a direction intersecting with the rotating direction of the magnetic field applying disk.

  In the case of the present embodiment, heat moves from the outer peripheral side to the inner peripheral side of the heat generating disks 410Aa-410Ca and the heat generating disks 410Ab-410Cb. Therefore, the outer peripheral side of the heat generating disks 410Aa-410Ca and the heat generating disks 410Ab-410Cb has a lower temperature, and the inner peripheral side has a higher temperature. In contrast to this embodiment, heat may be transferred from the inner peripheral side to the outer peripheral side of the heat generating disks 410Aa-410Ca and the heat generating disks 410Ab-410Cb. In this case, the temperature is high on the outer peripheral side of the heat generating disks 410Aa-410Ca and the heat generating disks 410Ab-410Cb, and the temperature is low on the inner peripheral side thereof.

  FIG. 3 is a configuration diagram of the magnetic field application disk. FIG. 3 illustrates the configuration of the magnetic field application disk 400Aa shown in FIG. The configurations of the other magnetic field application disks 400Ba-400Da and 400Ab-400Db are the same as the configuration of the magnetic field application disk 400A.

  3A shows the front surface of the magnetic field application disk 400Aa of FIG. 3B, and FIG. 3C shows the back surface thereof. As shown in FIG. 3B, the magnetic field application disk 400Aa is formed in a disc shape. As shown in FIGS. 3A and 3C, the front and back surfaces of the magnetic field application disk 400Aa have regions that are radially divided into 12 portions of 30 degrees.

  On the surface of the magnetic field application disk 400A, as shown in FIG. 4A, magnetic field application units 420Aa, 420Ab,..., 420Ak, 420Al are formed in each of the 12 regions. On the back surface of the magnetic field application disk 400A, as shown in FIG. 4C, magnetic field application units 420Ca, 420Cb,..., 420Ck, 420Cl are formed in each of the 12 regions.

  The magnetic field application units 420Aa-420Al on the front surface of the magnetic field application disk 400A and the magnetic field application units 420Ca-420Cl on the back surface thereof have permanent magnets arranged at the same positions on the front surface and the back surface. For example, as shown in FIG. 4A, the arrangement of the permanent magnets in the radial direction of the magnetic field application disk 400A is the same in the magnetic field application unit 420Aa and the magnetic field application unit 420Ca. The same applies to the magnetic field application units 420Ab and 420Cb, ..., and the magnetic field application units 420Al and 420Cl.

  Further, on the front and back surfaces of the magnetic field application disk 400A, the arrangement of the permanent magnets between the adjacent magnetic field application parts is shifted from each other in the radial direction of the magnetic field application disk 400A by the thickness of one permanent magnet. For example, in each of the magnetic field application units 420Aa, 420Ab, and 420Ac, in the magnetic field application units 420Aa and 420Ac adjacent to the magnetic field application unit 420Ab, the arrangement of the permanent magnets of the magnetic field application units 420Aa and 420Ac is changed to the permanent magnet of the magnetic field application unit 420Ab. The arrangement is shifted in the radial direction of the magnetic field application disk 400A by the thickness of one permanent magnet.

  FIG. 4 is a configuration diagram of the heat generating disk. FIG. 4 describes the configuration of the heat generating disk 410Aa shown in FIG. The configuration of the heat generation disks 410Ba-410Ca, 410Ab-410Cb other than the heat generation disk 410Aa is the same as that of the heat generation disk 410Aa.

  As shown in FIG. 4A, the outer periphery of the heat generating disk 410Aa faces the outer peripheral refrigerant passage 200A. The inner peripheral portion of the heat generating disk 410Aa faces the inner peripheral refrigerant passage 320A. The inner peripheral portion of the heat generating disk 410Aa is attached to the rotor 310A via a bearing 315. The rotor 310A can freely rotate via a bearing 315 with respect to the fixed heat generating disk 410Aa.

  As shown in FIGS. 4A and 4B, the position (outer peripheral part) facing the outer refrigerant passage 200A of the heat generating disk 410Aa is provided with a low temperature side heat exchanging part 450A, and the position (inner peripheral part) facing the inner peripheral refrigerant path 320A. ) Includes a high temperature side heat exchanging section 450B.

  As shown in FIG. 4A, the heat generating disk 410Aa has a region radially divided into 12 portions of 30 degrees. In each region, as shown in FIG. 4B, positive magnetocaloric materials 460A-460N and thermal switches 470A-470N + 1 are alternately arranged in a row between the low temperature side heat exchange section 450A and the high temperature side heat exchange section 450B. Is done. Although the example of FIG. 4 shows a positive magnetocaloric material, a negative magnetocaloric material may be used.

  As shown in FIG. 2, the magnetic field application disks 400Aa and 400Ba rotate with the heat generation disk 410Aa interposed therebetween. When the magnetic field application disks 400Aa and 400Ba rotate, magnetism is applied to and removed from the magnetocaloric material 460A-460N formed on the heat generation disk 410Aa, and heat generation and heat absorption are repeated. Thermal switches 470A-470N + 1 provided between the magnetocaloric material 460A-460N, the low temperature side heat exchange unit 450A, and the high temperature side heat exchange unit 450B transfer heat at a constant timing. For this reason, the heat generated by the magnetocaloric material 460A-460N moves from the low temperature side heat exchange unit 450A to the high temperature side heat exchange unit 450B, the temperature of the low temperature side heat exchange unit 450A becomes low, and the high temperature side heat exchange unit 450B. The temperature of becomes higher.

  With the clutch 300C turned off, air is supplied from the outside to the inlets 200AIN and 320AIN (see FIG. 1), and the rotor 310A is rotated by the outer rotor motor 300M. As shown in FIG. 4A, heat moves from the low temperature side heat exchanging section 450A toward the high temperature side heat exchanging section 450B in all 12 regions on the heat generating disks 410Aa-410Ca.

  Therefore, the temperature of the low temperature side heat exchange part 450A is relatively lower than the temperature of the high temperature side heat exchange part 450B, and cold air is obtained in the outer peripheral refrigerant passage 200A facing the low temperature side heat exchange part 450A. Moreover, the temperature of the high temperature side heat exchange part 450B becomes relatively higher than the temperature of the low temperature side heat exchange part 450A, and hot air is obtained in the inner peripheral refrigerant passage 320A facing the high temperature side heat exchange part 450B. This is the same when the rotor 310B is rotated.

  In this embodiment, the magnetocaloric material 460A-460N used for the heat generating disk 410Aa-410Ca effectively exhibits the magnetocaloric effect, and the magnetocaloric material 460A-460N used for the heat generating disk 410Ab-410Cb The temperature range where the effect is effectively exhibited is set to a different temperature range. As shown in FIG. 1, the temperature of the air flowing into the refrigerant passages is not the same between the upper core 100A and the lower core 100B.

  In this embodiment, the inlet 200AIN, the inlet 320AIN, the outlet 200AOUT, the outlet 320AOUT and the inlet 200BIN, the inlet 320BIN, the outlet 200BOUT, and the outlet 320BOUT of the lower core 100B are connected to the communication valve (FIG. The ability to generate cold air or hot air is adjusted by connecting with a device (not shown).

  For example, when a large cooling capacity is required, the refrigerant passages of the upper core 100A and the lower core 100B are connected in series. Specifically, the outlet 200AOUT of the upper core 100A and the inlet 200BIN of the lower core 100B are connected, and the outlet 320AOUT of the upper core 100A and the inlet 200BIN of the lower core 100B are connected in series. When the outer rotor motor 300M is moved by turning on the clutch 300C, very cold air cooled by the upper core 200A and the lower core 200B can be taken out from the outlet 200BOUT of the lower core 100B. In addition, the very warm air warmed by the upper core 200A and the lower core 200B can be taken out from the outlet 320BOUT of the lower core 100B.

  When a very large cooling capacity is not required, the refrigerant passage of the upper core 100A and the refrigerant passage of the lower core 100B are separated. The air flowing in from the inlet 200AIN of the upper core 100A is taken out from the outlet 200AOUT, and the air flowing in from the inlet 320AIN of the upper core 100A is taken out from the outlet 320AOUT. When the outer rotor motor 300M is moved with the clutch 300C turned off, the air cooled only by the upper core 200A can be taken out from the outlet 200AOUT of the upper core 100A. Further, the air heated only by the upper core 200A can be taken out from the outlet 320OUT.

  Further, the refrigerant passage of the upper core 100A and the refrigerant passage of the lower core 100B are separated, the air flowing in from the inlet 200BIN of the lower core 100B is taken out from the outlet 200BOUT, and the air flowing in from the inlet 320BIN of the lower core 100B is taken out. Take out from the outlet 320BOUT. When the outer rotor motor 300M is moved while the clutch 300C is ON, the air cooled by the upper core 200A and the lower core 200B can be taken out from the outlets 200AOUT and 200BOUT and is warmed by the upper core 200A and the lower core 200B. Air can be taken out from the outlets 320AOUT and 320BOUT.

  The magnetic cooling / heating device 100 according to the present embodiment realizes various operation modes by changing the connection state of the communication valve according to the required cooling capacity and heating capacity. The change of the operation mode is realized by switching the next refrigerant pipe and communication valve.

  FIG. 5 shows details of the communication valve of the magnetic air conditioner according to the present embodiment. As shown in the figure, the inlet 200AIN connected to the outer peripheral refrigerant passage 200A is connected to a pump 550P1 via a pipe 500A. Outflow port 200AOUT connected to outer peripheral refrigerant passage 200A communicates with an air-conditioned part (in this embodiment, a vehicle interior, a battery mounted on the vehicle, an inverter, and a motor) via a three-way valve 580V1. The inlet 200BIN connected to the outer peripheral refrigerant passage 200B is connected to the three-way valve 580V2, and the three-way valve 580V2 is connected to the pump 550P1 via the pipe 500B. Outflow port 200BOUT connected to outer peripheral refrigerant passage 200B communicates with the air-conditioned part.

  Further, as shown in the figure, the inlet 320AIN connected to the inner peripheral refrigerant passage 320A is connected to a pump 550P2 via a pipe 500C. Outflow port 320BOUT connected to inner peripheral refrigerant passage 200B communicates with the air-conditioned part via three-way valve 580V3. The inflow port 320BIN connected to the inner peripheral refrigerant passage 320B is connected to the three-way valve 580V4, and the three-way valve 580V4 is connected to the pump 550P2 via the pipe 500D. The outlet 320BOUT connected to the inner peripheral refrigerant passage 320B communicates with the air-conditioned part.

  FIG. 6 is a block diagram for explaining an outline of control based on signals from the conditioned air supply destination and the conditioned air supply destination of the magnetic cooling and heating apparatus 100 according to the present embodiment.

  The controller 600 of the magnetic air conditioner 100 acquires information related to the air conditioning of the passenger compartment 710. Specifically, the information related to the air conditioning of the passenger compartment 710 includes a set temperature in the vehicle set by the temperature setting device, an air volume in the vehicle, a temperature in the vehicle interior detected by the vehicle interior temperature sensor, and the like. Moreover, the temperature of the battery 720 mounted in the vehicle is acquired. Moreover, the temperature of the inverter 730 mounted in the vehicle is acquired. Furthermore, the temperature of the motor 740 that drives the vehicle is acquired.

  The controller 600 inputs the set temperature in the vehicle, the air volume in the vehicle, the temperature in the vehicle interior, the temperature of the battery 720, the temperature of the inverter 730, and the temperature of the motor 740. And the operating frequency (rotation speed) of the outer rotor motor 300M (see FIGS. 1 and 2), a pump control signal for controlling ON / OFF of the pump described later, and a valve for setting the position of the three-way valve described later A control signal and a clutch control signal for controlling ON / OFF of the clutch 300C (see FIGS. 1 and 2) are output to the magnetic air conditioner 100.

  Based on these control signals, the magnetic air conditioner 100 controls the rotational speed of the outer rotor motor 300M, the ON / OFF state of the pump, the position of the three-way valve, the ON / OFF state of the clutch 300C, the vehicle compartment 710, the battery 720, The inverter 730 and the motor 740 are supplied with conditioned air having the required amount of heat.

  The operation of the magnetic air conditioner 100 according to the present embodiment is controlled by a controller that controls the operation of the magnetic air conditioner 100. FIG. 7 is a block diagram of a control system of the magnetic air conditioner 100 according to the present embodiment.

  The controller 600 is connected to the three-way valve 580V1, the three-way valve 580V2, the three-way valve 580V3, and the three-way valve 580V4 shown in FIG. The position of each three-way valve is controlled by the controller 600.

  The controller 600 is connected to a clutch 300C (300Ca, 300Cb) and an outer rotor motor 300M. The controller 600 controls ON / OFF of the clutch 300C and the rotation speed of the outer rotor motor 300M. The controller 600 links the operation of the three-way valve 580V1, the three-way valve 580V2, the three-way valve 580V3, and the three-way valve 580V4 with the operation of the clutch 300C.

  A pump 550P1 and a pump 550P2 are connected to the controller 600. The controller 600 controls ON / OFF of the pump 550P1 and the pump 550P2.

  The controller 600 is connected to a temperature setter 610, a vehicle interior temperature sensor 620, an outside air temperature sensor 630, a solar radiation sensor 640, a motor temperature sensor 650, a battery temperature sensor 660, and an inverter temperature sensor 670.

  The temperature setting device 610 is provided, for example, in the vehicle interior of the vehicle, and is provided for the passenger to set the temperature in the vehicle interior. The vehicle interior temperature sensor 620 detects the temperature in the vehicle interior. The outside air temperature sensor 630 detects the temperature outside the passenger compartment. The solar radiation sensor 640 detects the solar radiation amount inserted into the passenger compartment. The motor temperature sensor 650 detects the temperature of the motor 740. Battery temperature detection sensor 660 detects the temperature of battery 720 mounted on the vehicle. Inverter temperature sensor 670 detects the temperature of inverter 730 that drives motor 740. The reason for providing the motor temperature sensor 650, the battery temperature sensor 660, and the inverter temperature sensor 670 is to enable the abnormality to be detected promptly when an abnormality occurs in the motor 740. Moreover, when the temperature of the motor 740, the battery 720, and the inverter 730 rises, cold air is supplied to them from the magnetic air conditioner 100.

  Next, the operation of the controller 600 will be described based on the operation flowcharts of FIGS.

  As shown in FIG. 8, the controller 600 includes information detected by a temperature setter 610, a vehicle interior temperature sensor 620, an outside air temperature sensor 630, a solar radiation sensor 640, a motor temperature sensor 650, a battery temperature sensor 660, and an inverter temperature sensor 670. Enter. That is, information detected by all sensors is input (S100).

  The controller 600 calculates a cooling load or a heating load based on information input from these sensors, and calculates the rotation speed of the outer rotor motor 300M and the operation mode of the magnetic cooling / heating device 100 from the calculation result ( S110).

  The controller 600 operates the outer rotor motor 300M at the calculated rotation speed (S120).

  The controller 600 determines which of the mode 1 to mode 3 is the calculated operation mode of the magnetic air conditioner 100 (S130).

  If the calculated operation mode of the magnetic air conditioner 100 is mode 1, the controller 600 controls mode 1 (S140), controls mode 2 if mode 2 (S150), and mode 3 The mode 3 is controlled (S160).

  And the controller 600 performs air-conditioning control according to the calculated operation mode of the magnetic air-conditioning apparatus 100 (S170).

  FIG. 9 is an operation flowchart of mode 1 in the controller 600. Mode 1 is a mode in which the magnetic air conditioner 100 is operated by connecting the upper core 100A and the lower core 100B in series as shown in mode 1 of FIG.

  Mode 1 is an operation mode for generating an air flow as shown in mode 1 of FIG. The outlet 200AOUT of the upper core 100A and the inlet 200BIN of the lower core 100B communicate with each other, air is supplied from the inlet 200AIN and cooled by the outer refrigerant passages 200A and 200B, and the cooled air is discharged from the outlet 200BOUT to the outside. Flowing. In addition, the outlet 320AOUT of the upper core 100A and the inlet 320BIN of the lower core 100B are communicated, air is supplied from the inlet 320AIN, and is heated by the inner peripheral refrigerant passages 320A and 320B. It flows from the outlet 320BOUT to the outside.

  For this reason, in mode 1, the upper core 100A and the lower core 100B generate cold air and hot air.

  In order to realize the air flow in mode 1, the controller 600 controls the operation of each three-way valve, clutch, and pump as shown in the flowchart of FIG.

  The controller 600 turns on the clutch 300C, turns on the pump 550P1 and the pump 550P2, and supplies air taken from the outside to the inlets 200A1N, 200BIN, 320AIN, and 320BIN (S141).

  The controller 600 drives the three-way valves 580V1, 580V2, 580V3, and 580V4, and sets the position of each three-way valve as in mode 1 in FIG. That is, the outer peripheral refrigerant passages 200A and 200B of the upper core 100A and the lower core 100B are connected in series, and the inner peripheral refrigerant passages 320A and 320B of the upper core 100A and the lower core 100B are connected in series (S142).

  FIG. 10 is an operation flowchart of mode 2 in the controller 600. Mode 2 is a mode in which only the upper core 100A is operated by separating the lower core 100B from the upper core 100A as shown in mode 2 of FIG.

  Mode 2 is an operation mode for generating an air flow as shown in mode 2 of FIG. The outlet 200AOUT of the upper core 100A and the inlet 200BIN of the lower core 100B are separated. The air supplied from the inflow port 200AIN is cooled only by the outer peripheral refrigerant passage 200A, and the cooled air flows to the outside from the outflow port 200AOUT. Further, the outlet 320AOUT of the upper core 100A and the inlet 320BIN of the lower core 100B are separated. The air supplied from the inlet 320AIN is heated only by the inner peripheral refrigerant passage 320A, and the heated air flows to the outside from the outlet 320AOUT.

  For this reason, in mode 2, cold air and warm air are produced only by the upper core 100A.

  In order to realize the air flow in mode 2, the controller 600 controls the operation of each three-way valve, clutch, and pump as shown in the flowchart of FIG.

  The controller 600 turns off the clutch 300C, turns on the pump 550P1 and the pump 550P2, and supplies air taken in from the outside to the inlets 200A1N, 200BIN, 320AIN, and 320BIN (S151).

  The controller 600 drives the three-way valves 580V1, 580V2, 580V3, and 580V4, and sets the position of each three-way valve as in mode 2 in FIG. That is, the outer peripheral refrigerant passages 200A and 200B of the upper core 100A and the lower core 100B are cut off, and the inner peripheral refrigerant passages 320A and 320B of the upper core 100A and the lower core 100B are cut off. (S152).

  FIG. 11 is an operation flowchart of mode 3 in the controller 600. Mode 3 is a mode in which the magnetic cooling / heating device 100 operates the upper core 100A and the lower core 100B independently and in parallel by separating the lower core 100B from the upper core 100A as shown in mode 3 of FIG.

  Mode 3 is an operation mode for generating an air flow as shown in mode 3 of FIG. The outlet 200AOUT of the upper core 100A and the inlet 200BIN of the lower core 100B are separated. The air supplied from the inflow port 200AIN is cooled only by the outer peripheral refrigerant passage 200A, and the cooled air flows to the outside from the outflow port 200AOUT. Further, the outlet 320AOUT of the upper core 100A and the inlet 320BIN of the lower core 100B are separated. The air supplied from the inlet 320AIN is heated only by the inner peripheral refrigerant passage 320A, and the heated air flows to the outside from the outlet 320AOUT. Furthermore, the air supplied from the inlet 200BIN of the lower core 100B is cooled only by the outer peripheral refrigerant passage 200B, and the cooled air flows to the outside from the outlet 200BOUT. Further, the air supplied from the inlet 320BIN of the lower core 100B is heated only by the inner peripheral refrigerant passage 320B, and the heated air flows from the outlet 320BOUT to the outside.

  For this reason, in mode 3, the upper core 100A generates cold air and hot air, and the lower core 100B also generates cold air and hot air.

  In order to realize the air flow in mode 3, the controller 600 controls the operation of each three-way valve, clutch, and pump as shown in the flowchart of FIG.

  The controller 600 turns on the clutch 300C, turns on the pump 550P1 and the pump 550P2, and supplies air taken from the outside to the inlets 200A1N, 200BIN, 320AIN, and 320BIN (S161).

  The controller 600 drives the three-way valves 580V1, 580V2, 580V3, and 580V4, and sets the position of each three-way valve as in mode 3 in FIG. That is, the outer peripheral refrigerant passages 200A and 200B of the upper core 100A and the lower core 100B are cut off, and the inner peripheral refrigerant passages 320A and 320B of the upper core 100A and the lower core 100B are cut off. Then, the air that flows in from the inlet 200AIN of the upper core 100A flows to the outlet 200AOUT, and the air that flows from the inlet 320AIN flows to the outlet 320AOUT. Further, the air flowing in from the inlet 200BIN of the lower core 100B is circulated to the outlet 200BOUT, and the air flowing in from the inlet 320BIN is circulated to the outlet 320BOUT (S162).

  FIG. 12 is an operation flowchart of air conditioning control in the controller. This flowchart is a flowchart showing a subroutine of the operation flowchart of FIG. The air conditioning control is performed by the controller 600 in the following procedure.

  In the controller 600, the set temperature and the air volume in the vehicle are set (S171). The controller 600 inputs the temperature in the vehicle from the vehicle interior temperature sensor 620 (see FIG. 7), inputs the temperature of the battery 720 (see FIG. 7) from the battery temperature sensor 660, and sets the temperature of the inverter 730 from the inverter temperature sensor 670. The temperature of the motor 740 is input from the motor temperature sensor 650 (S172).

  The controller 600 controls the operation frequency of the magnetic air conditioner 100 (the number of rotations of the outer rotor motor 300M), the ON / OFF of the clutch 300C, and the position of the three-way valves 580V1-580V4 based on the control map that the controller 600 has (S173). . The controller 600 determines the operating frequency of the magnetic air conditioner 100 (the number of rotations of the outer rotor motor 300M) and starts the operation (S174).

  The controller 600 determines whether the magnetic cooling / heating device 100 is in a stable state. Specifically, it is determined whether the magnetic air conditioner 100 has been operated for a certain period of time or a certain number of revolutions (S175). Until the stable state is reached (S175: NO), the operations from step S171 to step S175 are repeated.

  On the other hand, when the stable state is reached (S175: YES), the controller 600 calculates the heat transport amount of the magnetic cooling / heating device 100 and the difference between the high temperature end and the low temperature end of the magnetic cooling / heating device 100 (S176). It is determined whether the heat transport amount of the magnetic air conditioner 100 and the difference between the high temperature end and the low temperature end of the magnetic air conditioner 100 calculated in step S176 are within the target range (S177).

  When the amount of heat transported by the magnetic air conditioner 100 and the difference between the high temperature end and the low temperature end of the magnetic air conditioner 100 fall within the target range (S177: YES), the operation frequency used for the subsequent operation (rotation of the outer rotor motor 300M) Number) is determined (S178). On the other hand, if the amount of heat transported by the magnetic air conditioner 100 and the difference between the high temperature end and the low temperature end of the magnetic air conditioner 100 do not fall within the target range (S177: NO), the operating frequency of the magnetic air conditioner 100 (outer rotor motor) 300M) is changed, and the process returns to step S176 (S179).

  As described above, according to the magnetic air conditioner according to the present embodiment, cold air and hot air can be efficiently generated according to the required cooling capacity.

  According to the magnetic air conditioner according to the present embodiment, the driving force of the outer rotor motor 300M can be transmitted or not transmitted to the lower core 100B by the clutch 300C. And hot air can be generated. For this reason, energy-saving operation becomes possible.

  According to the magnetic air conditioner according to the present embodiment, the lower core 100B can be intermittently connected using the clutch 300C, so that the rotational force can be transmitted with a simple configuration and control.

  According to the magnetic air conditioner according to the present embodiment, the communication valve communicates the refrigerant passages on the inner peripheral side and the outer peripheral side of all the groups, or the refrigerant passages on the inner peripheral side and the outer peripheral side of only some groups. Since either mode of communication is provided, unnecessary refrigerant flow can be eliminated, and driving energy of the refrigerant can be reduced. Further, if the refrigerant passages on the inner peripheral side and the outer peripheral side are communicated with each other, heat exchange can be sufficiently performed as compared with the case where the refrigerant passages are not communicated with each other, so that a sufficiently cold and sufficiently warm high-temperature refrigerant flow can be obtained.

  According to the magnetic air conditioner according to the present embodiment, the refrigerant passages on the inner peripheral side and the outer peripheral side of all the groups are communicated in series or in parallel. Can be exchanged.

  According to the magnetic air conditioner according to the present embodiment, the operation of various modes can be quickly performed by interlocking the control of the communication valve with the clutch.

  According to the magnetic air conditioner according to the present embodiment, the flow of the refrigerant can be controlled by simple control by using a three-way valve as the communication valve.

  According to the magnetic cooling and heating apparatus according to the present embodiment, the temperature range in which the magnetocaloric effect of the magnetocaloric materials in the plurality of groups is different between the groups, so that the temperature difference between the refrigerant flowing in and out is determined. Since it can take large or can change the temperature of a refrigerant | coolant, a refrigerant | coolant can be supplied to several to-be-cooled parts from which various request | requirement temperature differs.

  According to the magnetic air conditioner according to the present embodiment, heat can be transported without using a refrigerant such as water by using air as the refrigerant.

  According to the magnetic air conditioner according to the present embodiment, since it has a simple configuration and can be operated with simple control, it is possible to perform air conditioning of various devices for vehicles.

100 Magnetic air conditioner,
100A upper core,
100B lower core,
200A, 200B outer peripheral refrigerant passage,
200AIN, 200BIN, 320AIN, 320BIN Inlet,
200 AOUT, 200 BOUT, 320 AOUT, 320 BOUT outlet,
300C clutch,
300M outer rotor motor,
310A, 310B rotor,
315 bearing,
320A, 320B inner peripheral refrigerant passage,
400Aa-400Da, 400Ab-400Db magnetic field application disk,
410Aa-410Ca, 410Ab-410Cb heat generating disc,
420Aa-420Al magnetic field application unit,
420Ca-420Cl magnetic field application unit,
450A low temperature side heat exchange section,
450B high temperature side heat exchange part,
460A-460N magnetocaloric material,
470A-470N + 1 Thermal switch.

500, 500A-500H circulation passage,
550P1, 550P2 pump,
580V1, 580V2, 580V3, 580V4 three-way valve,
610 temperature setter,
620 interior temperature sensor,
630 outside air temperature sensor,
640 solar radiation sensor,
650 motor temperature sensor,
660 battery temperature sensor,
670 inverter temperature sensor,
710 car cabin,
720 battery,
730 inverter,
740 motor.

Claims (9)

A plurality of hollow heat generating disks including a magnetocaloric material and a heat switch and a hollow magnetic field applying disk including a magnetic field applying unit that applies a magnetic field to the magnetocaloric material are alternately stacked to generate the heat. In a magnetic air conditioner that transports heat in a direction that intersects the rotation direction by relatively rotating at least one of the disk and the magnetic field application disk,
Drive means for rotating at least one of the heat generating disk and the magnetic field application disk;
A transmission means for transmitting the driving force from the driving means to a plurality of heat generating disks or a plurality of magnetic application disks in an integrated manner or separated into a plurality of groups;
A magnetic air-conditioning apparatus comprising: The transmission means includes
The magnetic air conditioner according to claim 1, wherein the magnetic air conditioner is a clutch that integrates the plurality of heat generating disks or the plurality of magnetic application disks or separates the plurality of heat generating disks into a plurality of groups. Refrigerant passages provided along inner and outer circumferences of the plurality of heat generating disks or the plurality of magnetic application disks corresponding to the plurality of groups,
A communication valve for individually communicating the refrigerant passage on the inner peripheral side and the refrigerant passage on the outer peripheral side of each group;
Have
The communication valve has either a mode in which the refrigerant passages on the inner peripheral side and the outer peripheral side of all groups are communicated or the refrigerant passages on the inner peripheral side and the outer peripheral side of only some groups are communicated. The magnetic air conditioning apparatus according to claim 1 or 2, wherein In the case where the communication valve is in a mode in which the refrigerant passages on the inner peripheral side and the outer peripheral side of all groups communicate with each other,
The magnetic cooling / heating device according to claim 3, wherein the refrigerant passages on the inner peripheral side and the outer peripheral side of all the groups are connected in series or in parallel.   The magnetic air conditioner according to claim 3 or 4, wherein the operation of the communication valve is interlocked with the operation of the clutch.   The magnetic air conditioner according to any one of claims 3 to 5, wherein the communication valve is a three-way valve.   The magnetic air conditioner according to any one of claims 1 to 6, wherein a temperature range in which the magnetocaloric effect of the magnetocaloric materials in the plurality of groups is expressed is different among the groups.   The magnetic cooling / heating device according to any one of claims 1 to 7, wherein the inner peripheral refrigerant passage and the outer peripheral refrigerant passage are an inner peripheral refrigerant passage and an outer peripheral refrigerant passage for air, respectively.   The cooling / heating air generated by the magnetic cooling / heating device according to claim 1 is used as air conditioning in a vehicle interior of a vehicle, or for temperature adjustment of a battery, an inverter, and a motor mounted on the vehicle. Air conditioning unit.